SQL injection in Grandstream UCM6200 series
Priority MEDIUM 40CWE-89Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-89.
Summary
The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the CTI server on port 8888. A remote unauthenticated attacker can invoke the challenge action with a crafted username and discover user passwords.
Why it matters now
EPSS 0.04332 91st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Grandstream UCM6200 series | up to 1.0.20.20 | — | No fix listed | CNA |
- Grandstream UCM6200 series Vendor— Affected up to 1.0.20.20 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:grandstream:ucm6202_firmware:*:*:*:*:*:*:*:* | before 1.0.20.22 | Vulnerable | Grandstream |
| cpe:2.3:h:grandstream:ucm6202:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Grandstream |
| cpe:2.3:o:grandstream:ucm6204_firmware:*:*:*:*:*:*:*:* | before 1.0.20.22 | Vulnerable | Grandstream |
| cpe:2.3:h:grandstream:ucm6204:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Grandstream |
| cpe:2.3:o:grandstream:ucm6208_firmware:*:*:*:*:*:*:*:* | before 1.0.20.22 | Vulnerable | Grandstream |
| cpe:2.3:h:grandstream:ucm6208:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Grandstream |
- cpe:2.3:o:grandstream:ucm6202_firmware:*:*:*:*:*:*:*:* Versions before 1.0.20.22 Vulnerable ·Grandstream
- cpe:2.3:h:grandstream:ucm6202:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Grandstream
- cpe:2.3:o:grandstream:ucm6204_firmware:*:*:*:*:*:*:*:* Versions before 1.0.20.22 Vulnerable ·Grandstream
- cpe:2.3:h:grandstream:ucm6204:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Grandstream
- cpe:2.3:o:grandstream:ucm6208_firmware:*:*:*:*:*:*:*:* Versions before 1.0.20.22 Vulnerable ·Grandstream
- cpe:2.3:h:grandstream:ucm6208:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Grandstream
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-5726
- 2026-10-03 Alias added: GHSA-j8g2-wfvh-q3pf
References
More Grandstream Ucm6202 Firmware vulnerabilities
- TI-2020-04685 OS command injection in Grandstream UCM6200 Series CVSS 3.1CRITICAL 9.8
- TI-2020-04651 Cleartext storage of sensitive information in Grandstream UCM6200 series CVSS 3.1CRITICAL 9.8
- TI-2020-04687 OS command injection in Grandstream UCM6200 Series CVSS 3.1CRITICAL 9.8
- TI-2020-04652 SQL injection in Grandstream UCM6200 series CVSS 3.1HIGH 7.5
- TI-2020-04686 OS command injection in Grandstream UCM6200 Series CVSS 3.1HIGH 8.8
- TI-2020-04653 SQL injection in Grandstream UCM6200 series CVSS 3.1MEDIUM 5.9
Sources
- CVE-2020-5726 · CVE Program
- CVE-2020-5726 · NVD
- FIRST EPSS
- GHSA-j8g2-wfvh-q3pf · GitHub Advisory Database · CC BY 4.0
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